what is the function of caffeine in tylenol 3?!

Question: What is the function of caffeine in tylenol 3?

what purpose does caffeine serve in tylenol 3? i read somewhere its for vasoconstriction, but what does that do in terms of pain relief?

Answers:

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There isn't any caffeine in Tylenol #3. Perhaps you're thinking of codeine, the narcotic agent in the pill, an opiate for mild pain relief.

A good article listing all the ingredients of the medication:
http://www.livestrong.com/article/76957-…

(By the way, caffeine is a vasoconstrictor, not a dilator. It acts to "squeeze" blood vessels, decreasing their diameter via a complex chemical mechanism.)

Caffeine pushes the blood through arteries much faster. It is a vasodilator. It opens the blood vessels and from my understanding Tylenol 3 does not contain any caffeine. Only Tylenol and Codeine.

Nursing Degree

Caffeine in small amounts acts as a pain reliever. It can relieve headaches and minor pains.

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what is the function of caffeine in tylenol 3?!

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